EP 3781991 A4 20211208 - TONER REFILL CARTRIDGE WITH STRUCTURE FOR PREVENTING TONER DISCHARGING PART FROM BEING BLOCKED BY WEIGHT PART
Title (en)
TONER REFILL CARTRIDGE WITH STRUCTURE FOR PREVENTING TONER DISCHARGING PART FROM BEING BLOCKED BY WEIGHT PART
Title (de)
TONERNACHFÜLLKARTUSCHE MIT STRUKTUR ZUM VERHINDERN DES BLOCKIERENS DES TONERAUSSTOSSTEILS DURCH EIN GEWICHTSTEIL
Title (fr)
CARTOUCHE DE RECHARGE DE TONER AYANT UNE STRUCTURE SERVANT À EMPÊCHER UNE PARTIE DE DÉCHARGE DE TONER D'ÊTRE BLOQUÉE PAR UNE PARTIE DE POIDS
Publication
Application
Priority
- KR 20190025651 A 20190306
- US 2019045927 W 20190809
Abstract (en)
[origin: WO2020180344A1] A toner refill cartridge includes a body including a toner chamber containing toner and a toner discharging portion having an entrance connected to one end of the toner chamber in a length direction and an exit to discharge toner outside of the toner refill cartridge, a plunger including a piston that is movably inserted into the toner chamber in the length direction and a packing member located at an end of the piston to push the toner toward the toner discharging portion, a weight part movably accommodated in the toner chamber and having a shape which prevents the weight part from passing through the entrance, and a weight part container provided in the one end of the toner chamber in the length direction such that the weight part can be accommodated therein.
IPC 8 full level
G03G 15/08 (2006.01); G03G 21/00 (2006.01); G03G 21/18 (2006.01)
CPC (source: EP KR US)
G03G 15/0865 (2013.01 - EP US); G03G 15/0867 (2013.01 - EP KR); G03G 15/0894 (2013.01 - EP KR US); G03G 21/181 (2013.01 - EP US); G03G 15/0867 (2013.01 - US); G03G 21/1633 (2013.01 - US); G03G 2215/0668 (2013.01 - EP); G03G 2215/0673 (2013.01 - EP)
Citation (search report)
- [XA] US 6862420 B1 20050301 - LESS KRZYSZTOF J [GB]
- [XA] JP 2003084549 A 20030319 - CANON KK
- [IA] US 5774772 A 19980630 - KAI TSUKURU [JP], et al
- [A] JP H08137229 A 19960531 - NEC CORP
- See also references of WO 2020180344A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2020180344 A1 20200910; CN 112470081 A 20210309; CN 112470081 B 20240820; EP 3781991 A1 20210224; EP 3781991 A4 20211208; EP 3781991 B1 20230927; ES 2962816 T3 20240321; KR 20200107100 A 20200916; PL 3781991 T3 20231227; US 11281125 B2 20220322; US 2021263448 A1 20210826
DOCDB simple family (application)
US 2019045927 W 20190809; CN 201980049090 A 20190809; EP 19917752 A 20190809; ES 19917752 T 20190809; KR 20190025651 A 20190306; PL 19917752 T 20190809; US 201917059592 A 20190809